// Copyright 2023 N4-Networks.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package cntlr

import (
	"errors"
	"log"

	"github.com/n4-networks/openusp/pkg/parser"
	"github.com/n4-networks/openusp/pkg/pb/bbf/usp_msg"
)

func prepareUspMsgNotifyRes(agentId string, mData *uspMsgData) ([]byte, error) {
	if mData == nil {
		log.Println("mData is not initialized")
		return nil, errors.New("mData not initialized")
	}
	log.Println("Preparing Notify response for agent:", agentId)

	var notifyResp usp_msg.NotifyResp
	notifyResp.SubscriptionId = mData.notify.subscriptionId
	uspMsg, err := parser.CreateUspNotifyResponse(&notifyResp, mData.id)
	if err != nil {
		log.Println("Error in creating Usp Msg byte stream, err:", err)
		return nil, err
	}
	return uspMsg, nil
}
